package com.czh.subject.domain.config;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * 自定义线程工厂
 * @author caozaihui
 * @version 1.0
 * @since 2024/9/7 下午 5:40
 */

public class CustomizableThreadFactory implements ThreadFactory {
    private static final AtomicInteger poolNumber = new AtomicInteger(1);
    private final ThreadGroup group ;
    private final AtomicInteger threadNumber = new AtomicInteger(1);
    private final String namePrefix;
//在Java17中提供了CustomizableThreadFactory类，可以设置线程名
    CustomizableThreadFactory() {
        @SuppressWarnings("removal")
        SecurityManager s = System.getSecurityManager();
        group = (s != null) ? s.getThreadGroup(): Thread.currentThread().getThreadGroup();
        namePrefix = "pool-" + poolNumber.getAndIncrement() + "-thread-";
    }

    public Thread newThread(Runnable r) {
        Thread t = new Thread(group, r,
                namePrefix + threadNumber.getAndIncrement(),
                0);
        if (t.isDaemon())
            t.setDaemon(false);
        if (t.getPriority() != Thread.NORM_PRIORITY)
            t.setPriority(Thread.NORM_PRIORITY);
        return t;
    }

}
